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Multifractal Structure of Turbulence in the Magnetospheric Cusp : Volume 22, Issue 7 (14/07/2004)

By Yordanova, E.

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Book Id: WPLBN0003972189
Format Type: PDF Article :
File Size: Pages 10
Reproduction Date: 2015

Title: Multifractal Structure of Turbulence in the Magnetospheric Cusp : Volume 22, Issue 7 (14/07/2004)  
Author: Yordanova, E.
Volume: Vol. 22, Issue 7
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2004
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Yordanova, E., Wernik, A. W., Stasiewicz, K., Grzesiak, M., & Popielawska, B. (2004). Multifractal Structure of Turbulence in the Magnetospheric Cusp : Volume 22, Issue 7 (14/07/2004). Retrieved from http://members.worldlibrary.net/


Description
Description: Space Research Center, Polish Academy of Sciences, Poland. Magnetospheric cusps are regions which are characterized by highly turbulent plasma. We have used Polar magnetic field data to study the structure of turbulence in the cusp region. The wavelet transform modulus maxima method (WTMM) has been applied to estimate the scaling exponent of the partition function and singularity spectra. Their features are similar to those found in the nonlinear multifractal systems. We have found that the scaling exponent does not allow one to conclude which intermittency model fits the experiment better. However, the singularity spectra reveal that different models can be ascribed to turbulence observed under various IMF conditions. For northward IMF conditions the turbulence is consistent with the multifractal p-model of fully developed fluid turbulence. For southward IMF experimental data agree with the model of non-fully developed Kolmogorov-like fluid turbulence.

Summary
Multifractal structure of turbulence in the magnetospheric cusp

 

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